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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Higher
Lower
None of these
Same as

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

735 watts
102 watts
550 watts
75 watts

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.

More than
None of these
Less than
Equal to

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Hydraulics and Fluid Mechanics in ME
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

0.5 v₁²/2g
v₂²/2g
v₁²/2g
0.375 v₂²/2g

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Hydraulics and Fluid Mechanics in ME
The stability of a dam is checked for

All of these
Sliding of the wall or dam
Overturning of the wall or dam
Tension at the base

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Hydraulics and Fluid Mechanics in ME
Casting of a centrifugal pump is designed so as to minimize

Static head
Loss of kinetic energy
Friction loss
Cavitations

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